projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2001-2011 Hartmut Kaiser | |
| 3 | ||
| 4 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 6 | =============================================================================*/ | |
| 7 | #if !defined(SPIRIT_MATCHES_JAN_07_2010_0745PM) | |
| 8 | #define SPIRIT_MATCHES_JAN_07_2010_0745PM | |
| 9 | ||
| 10 | #if defined(_MSC_VER) | |
| 11 | #pragma once | |
| 12 | #endif | |
| 13 | ||
| 14 | #include <boost/spirit/home/qi/meta_compiler.hpp> | |
| 15 | #include <boost/spirit/home/qi/parser.hpp> | |
| 16 | #include <boost/spirit/home/qi/detail/assign_to.hpp> | |
| 17 | #include <boost/spirit/home/support/unused.hpp> | |
| 18 | #include <boost/spirit/home/support/info.hpp> | |
| 19 | #include <boost/spirit/home/support/common_terminals.hpp> | |
| 20 | #include <boost/spirit/home/support/has_semantic_action.hpp> | |
| 21 | #include <boost/spirit/home/support/handles_container.hpp> | |
| 22 | ||
| 23 | namespace boost { namespace spirit | |
| 24 | { | |
| 25 | /////////////////////////////////////////////////////////////////////////// | |
| 26 | // Enablers | |
| 27 | /////////////////////////////////////////////////////////////////////////// | |
| 28 | template <> | |
| 29 | struct use_directive<qi::domain, tag::matches> // enables matches | |
| 30 | : mpl::true_ {}; | |
| 31 | }} | |
| 32 | ||
| 33 | namespace boost { namespace spirit { namespace qi | |
| 34 | { | |
| 35 | #ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS | |
| 36 | using spirit::matches; | |
| 37 | #endif | |
| 38 | using spirit::matches_type; | |
| 39 | ||
| 40 | /////////////////////////////////////////////////////////////////////////// | |
| 41 | // matches_directive returns whether the embedded parser matched | |
| 42 | /////////////////////////////////////////////////////////////////////////// | |
| 43 | template <typename Subject> | |
| 44 | struct matches_directive : unary_parser<matches_directive<Subject> > | |
| 45 | { | |
| 46 | typedef Subject subject_type; | |
| 47 | matches_directive(Subject const& subject_) | |
| 48 | : subject(subject_) {} | |
| 49 | ||
| 50 | template <typename Context, typename Iterator> | |
| 51 | struct attribute | |
| 52 | { | |
| 53 | typedef bool type; | |
| 54 | }; | |
| 55 | ||
| 56 | template <typename Iterator, typename Context | |
| 57 | , typename Skipper, typename Attribute> | |
| 58 | bool parse(Iterator& first, Iterator const& last | |
| 59 | , Context& context, Skipper const& skipper, Attribute& attr_) const | |
| 60 | { | |
| 61 | bool result = subject.parse(first, last, context, skipper, unused); | |
| 62 | spirit::traits::assign_to(result, attr_); | |
| 63 | return true; | |
| 64 | } | |
| 65 | ||
| 66 | template <typename Context> | |
| 67 | info what(Context& context) const | |
| 68 | { | |
| 69 | return info("matches", subject.what(context)); | |
| 70 | } | |
| 71 | ||
| 72 | Subject subject; | |
| 73 | ||
| 7c673cae | 74 | // silence MSVC warning C4512: assignment operator could not be generated |
| 92f5a8d4 | 75 | BOOST_DELETED_FUNCTION(matches_directive& operator= (matches_directive const&)) |
| 7c673cae FG |
76 | }; |
| 77 | ||
| 78 | /////////////////////////////////////////////////////////////////////////// | |
| 79 | // Parser generators: make_xxx function (objects) | |
| 80 | /////////////////////////////////////////////////////////////////////////// | |
| 81 | template <typename Subject, typename Modifiers> | |
| 82 | struct make_directive<tag::matches, Subject, Modifiers> | |
| 83 | { | |
| 84 | typedef matches_directive<Subject> result_type; | |
| 85 | result_type operator()(unused_type, Subject const& subject, unused_type) const | |
| 86 | { | |
| 87 | return result_type(subject); | |
| 88 | } | |
| 89 | }; | |
| 90 | }}} | |
| 91 | ||
| 92 | namespace boost { namespace spirit { namespace traits | |
| 93 | { | |
| 94 | /////////////////////////////////////////////////////////////////////////// | |
| 95 | template <typename Subject> | |
| 96 | struct has_semantic_action<qi::matches_directive<Subject> > | |
| 97 | : unary_has_semantic_action<Subject> {}; | |
| 98 | ||
| 99 | /////////////////////////////////////////////////////////////////////////// | |
| 100 | template <typename Subject, typename Attribute, typename Context | |
| 101 | , typename Iterator> | |
| 102 | struct handles_container<qi::matches_directive<Subject>, Attribute | |
| 103 | , Context, Iterator> | |
| 104 | : unary_handles_container<Subject, Attribute, Context, Iterator> {}; | |
| 105 | }}} | |
| 106 | ||
| 107 | #endif |